Houston/Galveston, TX

Weather Forecast Office

NWS Forecast Office Houston/Galveston, TX

Click a location below for detailed forecast.

Last Map Update: Fri, May 22, 2026 at 3:46:24 pm CDT

Watches, Warnings & Advisories

National Weather Service Fort Worth/Dallas, TX

National Weather Service Austin/San Antonio, TX

Zoom Out

National Weather Service Lake Charles, LA

National Weather Service Corpus Christi, TX

National Weather Service Brownsville/Rio Grande Valley, TX

National Weather Service National Weather Service

Flood Warning

Flood Watch

Radar

Heavy Rainfall Risk Through Weekend

Flood Watch Expanded

Most Likely and High End Forecast Rainfall Totals

Observed Rainfall Totals

Tonight's Outlook

Extended Weather Outlook

Current radar loop for Houston, TX.

Multiple rounds of showers and thunderstorms containing moderate to heavy rainfall expected through the weekend. Locally heavy rainfall capable of at least minor flooding is expected. River rises to action and minor flood state expected by the weekend.

A Flood Watch remains in effect through Monday evening for portions of southeast Texas, including Grimes, Polk, San Jacinto, Trinity, Walker, Washington, Austin, Colorado, Waller, Harris, Liberty, Montgomery, Jackson, Matagorda, Wharton, Fort Bend, Brazoria, and Galveston counties. Impacts include excessive runoff resulting in flooding of creeks, streams, and other low-lying and flood prone locations.

Widespread 2 to 4 inches of rain is expected through Monday evening. Higher totals of up to 5+ inches are possible in isolated areas.

Widespread 1 to 3 inches of rain fell over the last 72 hours. Highest totals of 6-8+ inches along the coast. Pockets of 4-6 inches to the north.

Overnight lows ranging from the upper 60s to upper 70s, mostly cloudy skies. Light fog and isolated thunderstorms possible overnight.

Highs in the 80s and lows in the upper 60s to 70s through next week. Precipitation chances increase Saturday afternoon through Monday morning. A break in precipitation is expected early next week, until more disturbances arrive mid week.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Crockett	01:35	Rain \ Mist \ Lightning Observed	3	66	66	100	CALM	-	30.09
Caldwell	14:55	Mostly Cloudy	10	84	69	62	SSE 9	-	29.86
College Station	14:53	Mostly Cloudy	10	85	70	61	S 9	-	29.85
Huntsville	14:53	Overcast	10	86	69	57	SSW 6	-	29.86
Navasota	15:15	Overcast	10	86	75	70	S 8	95 [HI]	29.84
Conroe	14:53	Mostly Cloudy	10	87	69	55	S 10G17	91 [HI]	29.86
Hooks Airport	14:53	Overcast	10	86	69	57	SSW 6	-	29.85
Intercontinental Airport	13:53	Mostly Cloudy	10	87	67	51	SSE 6	-	29.85
Houston Hobby Airport	14:53	Mostly Cloudy	10	89	70	53	S 9	94 [HI]	29.84
Sugar Land	14:53	Partly Cloudy	10	86	70	58	S 12	91 [HI]	29.85
Wharton	01:10	Light Rain	5	68	66	93	N 17G24	-	30.08
Pearland	14:53	Clear	10	88	65	46	S 9G17	-	29.87
Ellington Field	14:54	Partly Cloudy	10	89	68	49	S 9	93 [HI]	29.84
La Porte	14:55	Mostly Cloudy	10	86	72	65	SE 14	92 [HI]	29.86
Angleton/Lake Jackson	14:53	Clear	10	87	72	60	SSW 10	94 [HI]	29.86
Galveston	14:52	Mostly Clear	10	83	75	77	S 9	-	29.88
Bay City	15:15	Mostly Clear	10	85	79	81	S 12	97 [HI]	29.82
Palacios	14:53	Mostly Clear	10	85	74	69	SSE 13	92 [HI]	29.85
Rig 20 Miles SE of Galveston	15:15	Clear	10	78	75	88	SE 7	-	29.89
Rig 20 Miles SE of Matagorda	15:20		10	82	80	94	SE 7	93 [HI]	29.90

Select another Date: